Hot-oil pump



Jan. 10, 1928. 1,655,545

A. HOLLANDER ET ALv I HOT OIL PUMP Filed Sept. 21, 1925 gwuentou CY/a/w J w Mm! gclmw Patented Jan. 10, 1928.

UNITED STATES PATENT- OFFICE.

ALADAR HOLLANDER, OF BERKELEY, AND ROBERT SCHURMAN, OF SAN FRANCISCO,

CALIFORNIA, ASSIGNORS TO BYRON JACKSON PUMP MFG. 00., OF BERKELEY, CALL FORNIA, A CORPORATION OF CALIFORNIA.

nor-oil. rurrr.

Application filed September 21, 1925. Serial No. 57,534.

In pumping oil under high pressure and temperatures, the greatest precaution must be observed-to reduce the fire risk to a minimum.

Oil at high temperature flashes when brought in contact with air and thus any leakage into the air results in an immediate flash.

Provision must therefore be made in an apparatus of this character to prevent all such leakage and flashing as far as this is possible. and also provision to quench any such flashing and to stop any leakages when they occur.

The operation of the pump involves generally the driving of an operating shaft by some suitable motor means located under atmospheric conditions. of temperature and pressure,- the said operating shaft passing into a compartment of high pressure.

The gland structure which is employed to seal the high pressure chamber about the said operating shaft thus becomes a critically important element in such. an apparatus, thegoperation of the shaft not infrequently bringing about a wearing on the packing Which occasionally results in aleak- 7 age from the high pressure compartment into the atmosphere. Such leakage is liable to flash at once into flame and it is the object of our invention to confine said flashing within a chamber especially constructed for that purpose, and to provide said chamber with flame'confining and flame extinguisha5 ing means and with gland adjusting means, external to said chamber whereby the operator may,-'when such flashing occurs, quickly extinguish the flame and readjust the packing without interruption to the operation of the apparatus or danger to himself.

Afurther object of our invention is the confining of such flashing within a specially constructed chamber to reduce fire risk toa minimum.

. Byreferring to the accompanying drawing. our invention will be made clear.

Fig. 1 is a vertical cross section through a high pressure hot oil centrifugal pump,v

driven by .a direct connected steam turbine and embodying our invention.v

Fig. 2 is a cross section in plan of the flame protecting shield of Fig. l, on the line II II thereof.

Throughout the figures similar numerals refer to identical parts.

An oll pipe inlet is shown by the numeral 1, and a high pressure discharge port is shown at2.

A centrifugal pump runner is indicated at 3 mounted upon a main driving shaft 4.

The latter is driven through the flexible coupling 5 from the conventional steam turbine 6, the runner picking up the oil from the mlet pipe 1 and passing the same under high pressure through the discharge pipe 2.

The pump casing 7 is supported by the frame structure 8 and base 9-. the latter carrymg also-the steam turbine 6, thus securing alignment of all of the parts.

The bearing 10 is provided with a cover and receiving pan 11.

Projecting below the upper edge of this pan is the flame'shield 12 having the hand plate 13 forming therewith a complete annular shell preferably conically shaped about the shaft 4 and extending upward beyond the lower limits of the collar member 14. i

This collar member depends from the stationary portion of the frame structure 15 and is rotatably mounted in" connection therewith, and adapted to be rotated by the pinion 16 actuated by the external hand wheel 17, carried on the spindle '18-. p

The collar 14 is provided with internal threads 19 engaging exterior threads on the adjusting ring 20.

From the ring 20 connecting arms 21, 22 engage the gland 23.

Thering 2O slides .upon the spline 24 and is therefore longitudinally movable with respect to the stationary bearing member 25, but isrprevented from rotation with the collar 14. I

A rotating over-hanging skirt at 26 forces a drainage into the pan 11 of any oil which may leak down the shaft 4. I

Lubricating pipes are shown at 30, 31, 32, with conventional drains, pressure gauges, valvcs, and accessory parts employed in the operation of the pump.

Particular attention is directed to the flame chamber 44 which is separated from the driving motor or steam turbine 6 by the diaphragm or partition 45, and to which access is had through the door 40.-

In the event of flame developing within this chamber, it may bereadily extinguished by the steam injector 35 more fully described below, and to enable the' operator dur ng such periods to approach, observe and bring under control the abnormal conditions, there is provided a steam ejector at 42 supplied from the pipe 41 and discharging into a conventional discharge pipe 43 so that the vapors of combustion or other noxious fumes or vapors may be ejected free from the doorway at 40 and in fact causing an iii-draft in the chamber 44 when the door 40 is opened.

Our present invention is directed to minimizing the possible leakage from high pressure pump compartments into the atmosphere and the quenching of any flame resulting from the oil flashing when such'leakage does occur and the readjustment of the parts to re-establish normal operation without interruption.

If, during, the operation of the pump, oil accidentally leaks along the shaft 4, escaping by the gland packing material 33, it will flash when coming in contact with the air and this flash will be confined within the chamber 44', and will appear as a flame at the .driving said shaft, a

bottom of the shield and about the pan 11.

The operator immediately opens the steam valve 34, supplying a jet of steam through the connecting pipe at 35 which quenches the flame.

The hand wheel 17 is now immediately rotated, actuating through the pinion 16, the rotation: of the collar 14 and the raising of the adjusting ring 20, whereupon the arms 21, 22 force the gland 23 against the packing 33, forcing the packing tighter against the shaft and stopping the leakage.

The steam valve 34 is then closed and the apparatus continues without interruption.

While we have shown special forms of packing and gland and operating parts, a conically shaped flame shield, a stationary receiving pan 11 and otherspecific details of construction in the particular example chosen to exemplify our invention, it will be understood that variations in the forms and materials of these elements may be employed without departing from the spirit of our invention, and We wish to be understood as claiming all such variations.

We claim:

1. In a centrifugal pump, a shaft, gland means around said shaft adapted to prevent leakage of oil from the fipump,-motor means ame shield around said gland means and closed from said motor means.

2. In a centrifugal pump, a shaft, gland means around said shaft adapted to prevent leakage of oil from the pump, motor means driving said shaft, a flame shield around said gland means and closed from said motor means, mechanism external to said shield constructed and adapted to adjust said gland means.

3. In a centrifugal pump, a shaft, gland means around said shaft adapted to prevent leakage of oil from the pump, motor means driving said shaft, a flame shield around said gland means and closed from said motor means and a steam injector to directsteam against an oil flame propagated adjacent said gland means.

4. In a centrifugal pump, a shaft, gland means around said shaft adapted to prevent leakage of oil from'the pump, motor means driving said shaft, a flame shield around said Ell) casing, a driving shaft for said impeller and motor means actuating said shaft," of gland means in the casing wall and around the shaft constructed and adapted to prevent leakage of oil from the casing, a flame shield surrounding said gland means, a. bearing and closure partition between said shield and said motor means. 3

6. The combination set forth in claim 5 and a'steam 1port and'valve to direct steam to extinguis 1 flame adjacent the gland means. I

' 7. The combination set forth in claim 5 and a steam port and valve to direct steam to extinguish flame adjacent the gland means and operating connections for said gland means external to said flame shield.

8. In a vertical shaft high pressure centrifugal pump, a driving shaft extending below the pump, motor means adapted to drive said shaft, a flame chamber between said pump and said motor means having an opening and closure means therefor, a hand operab e flame shield around the shaft within the chamber.

9. The combination set forth in claim 8 and a steam port and valve constructed and adapted to .direct a steam jet to extinguish flame adjacent the said shield.

10. In a centrifugal pump,'the combination with a casin and an impeller within said casing, a drivingshaft for said im eller and motor means actuating said sha t, of

gland means in the casing wall and around ing and a closure partition between said shield and said motor means, a flame chamher, and door means admitting access to said chamber.

1 1. The combination set forth in claim 5 and a steam portend valve. to direct steam to extinguish flame adjacent the gland means forming a flamechamber, and door means admitting access to said chamber. A

12. The combination set forth in claim 5 and a steam ort and valve to direct steam to extinguish ame adjacent the, gland means and operating connections for said gland means external to said flame shield, a flame chamber, and doormeans admitting access to said chamber.

[13. In a centrifugal pump, the combination with a casing and an impeller Within said. casing a driving shaft'for said impeller and motor means actuating said shaft, of gland means in the casing Wall and around the shaft constructed and adapted to prevent leakage of oil from the casing, a flame shield surroundin said land means a bearin and g g a b partition between said shield and said motor means, a flame chamber, and door means admitting access to said chamber, a discharge port from said chamber and a fluid ejector constructed and adapted to eject vapors from the chamber through said port.

14. The combination set forth in claim 5 and'a steam port and valve to direct steam to extinguish flame adjacent the gland means, a flame chamber, and door means admitting access to said chamber, a'discharge port from said chamber and a fluid ejector constructed and adapted to eject vapors from I the chamber through said port.

15. The combination set forth in claim 5 and a steam port and valve to direct steam.

to extinguish flame adjacent the gland means and operating connections for said gland means external to said flame shield, a flame chamber, and door means admitting access to said chamber.

16. In a vertical shaft high pressure centrifugal pump, a driving'shaft extendin beloW the pump, motor means adapted to rive ing and closure means therefor, a hand operable flame shield around the shaft within the compartment, a discharge port from said chamber and a fluid ejector constructed and adapted to eject vapors from the chamber through said port. r

17 In a vertical shaft high pressure centrifugal pump, a driving shaft extending below the pump, motor means adapted to drivev steam et to extinguish flame adjacent the said shield.

ALADAR HOLLANDER. ROBERT SCHURMAN.

said shaft, a flame compartment between said pump and said motor means having an opentil) 

